In the overdamped limit, a passive particle's dynamics is governed only by its free space diffusion constant, \(D_0 = k_BT/\gamma \) . Further, the escape rate in this limit is directly proportional to the diffusion constant irrespective of the nature of the cavity and pore structures [1]}, [2]}, [3]}, [4]}. Thus, the mean exit time becomes directly proportional to the damping constant \(\gamma \) . However, overdamped self-propelled particles display different behaviours (see Fig. 2-3) depending upon values of parameters.
